Cognomen Ritua (Ritua 
) , worldwide, is a rare last name. The cognomen Ritua is characteristic of Philippines, where it is a rare surname, Indonesia, where it is a very rare surname, and the United States, where it is an extremely rare surname. Very seldom, Ritua is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Ritua | Philippines, Italy, United States, India, Indonesia |